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Finding the Fourth Proportional to 8,673.64, 13,018.56 and 4,772.68

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Solution

The fourth proportional to 8,673.64, 13,018.56 and 4,772.68 is: 7,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.64 : 13,018.56 = 4,772.68 : x
  2. Step 2: Convert to fraction form
    8,673.64/13,018.56 = 4,772.68/x
  3. Step 3: Cross multiply
    8,673.64x = 13,018.56 × 4,772.68
  4. Step 4: Simplify right side
    8,673.64x = 62,133,420.94
  5. Step 5: Solve for x
    x = 62,133,420.94/8,673.64
  6. Step 6: Final answer
    x = 7,163.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.